Julio Salguero

Julio Abrahán Salguero Rodríguez 6+ years of experience Senior Ruby on Rails Developer| Laravel Developer| Go Developer| JavaScript Developer Personal Information Guatemala in/julio-salguero github.com/jsalguero94 Education UNIR University - Online Master's Degree, Big Data May 2021 - November 2022 | GPA: 9.5/10 Mesoamericana University - Quetzaltenango, Guatemala Bachelor's degree, Systems engineering and computer science 2011 - 2017 Experience Personal projects - Remote React/React Native/Nest JS/Typescript Developer April 2025 Built a product search engine aggregating data from over 12 local stores, enabling users to compare prices across retailers using React for the frontend and NestJS for the backend. comparador-precios-gt.netlify.app Developed a cross-platform sticky notes board application using Expo (React Native), thoroughly tested on Android, iOS, and web, delivering robust and consistent experiences across multiple platforms. sticky-notes-react-native.netlify.app Koombea - Remote Software Engineer November 2021 - November 2025 Utilized code versioning tools to manage and track changes in software development projects Applied computer engineering principles to develop robust software solutions for diverse applications. Developed and implemented effective troubleshooting strategies to identify and resolve technical challenges in software applications. Developed and maintained responsive front-end interfaces for web applications. Improved testing suite dropping execution time from 30 minutes to under 2 minutes. Sword & Scale Developed a high-performance Rails 7 API powering web and mobile (iOS/Android) applications used by over 100,000 users, integrating third-party logins (Google, Facebook, Apple) and payment systems (Google Play, App Store, Stripe, PayPal). Built a custom Active Admin panel with advanced features, leveraging Turbo and extensive JavaScript experience with Stimulus JS for handling large media uploads (1K+ files). Optimized database and infrastructure, cutting AWS costs by 92% (~$3,158/month) through strategic resource management and server-side logic improvements. Configured and maintained web servers to ensure optimal performance and reliability for applications. CareCentrix Designed and implemented complex business logic, optimizing Rails code for system performance and stability, and led debugging efforts to identify and resolve performance bottlenecks. VationVentures Served as interim lead developer, creating API endpoints using meta-programming techniques in Ruby on Rails, ensuring smooth integration of new features with existing systems. Tamborapp Led database architecture design and developed Rails API endpoints for an internal QA tool using Ruby on Rails, improving testing efficiency through automation and structured data management. Compliable Developed a microservice in Golang for creating, validating, and estimating costs of FedEx shipping labels, enhancing operational efficiency by automating shipping label workflows. Impact Supported a China-based team in developing a Shoplazza Laravel plugin, implementing OAuth 2.0, HMAC validation for webhooks, and Slack notifications. Maintained a Magento project, integrating Recurly and Squarespace for enhanced e-commerce functionality. Developed a Salesforce Commerce Cloud B2C cartridge, improving e-commerce capabilities and user experience. SASCIM - Mixco, Guatemala Laravel Developer March 2019 - November 2021 Developed solutions for online payments and billing software using Laravel, improving customer experience and operational efficiency. Created a microservice in Express.js to connect on-premises servers to the cloud, streamlining data flow and reducing latency. Set up and managed on-premises and cloud-based Linux servers, ensuring reliable infrastructure for business operations. Skills & Interests Technical Skills: Ruby, PHP, Go, JavaScript, Node.js, React, TypeScript, Ruby on Rails, Laravel, NestJS, Express.js, Go, HTML5, CSS3, SQL. Frameworks & Tools: Ruby on Rails, Laravel, Stimulus JS, NestJS, React Native, Expo, Bootstrap, TailwindCss, BulmaCss, RSpec, Jest, AWS, Heroku, Git, Github, Docker, GitFlow, Jira, Nvim, Zellij, ORM, MVC. Database Management: PostgreSQL, MySQL, Redis, MongoDB, data storage. Certifications: Salesforce B2C Commerce Developer; Scrum Fundamentals Certified. Languages: Spanish (Native), English (CEFR: Advanced - C1).